• Industry's Highest Efficiency at Low Output Currents: > 90% With IOUT = 15 µA
• Ultra-Low Power Buck Converter
  • TPS62736 Optimized for 50-mA Output Current
  • TPS62737 Optimized for 200-mA Output Current
  • 1.3-V to 5-V Resistor Programmable Output Voltage Range
  • 2-V to 5.5-V Input Operating Range
  • 380-nA and 375-nA Quiescent Current During Active Operation for TPS62736 and TPS62737
  • 10-nA Quiescent Current During Ship Mode Operation
  • 2% Voltage Regulation Accuracy
• 100% Duty Cycle (Pass Mode)
• EN1 and EN2 Control
  • Two Power-Off States:
  • Shipmode (Full Power-Off State)
  • Standby Mode Includes VIN_OK Indication
• Input Power-Good Indication (VIN_OK)
  • Push-Pull Driver
  • Resistor Programmable Threshold Level

• Ultra-Low Power Applications
• 2-Cell and 3-Cell Alkaline-Powered Applications
• Energy Harvesting
• Solar Chargers
• Thermal Electric Generator (TEG) Harvesting
• Wireless Sensor Networks (WSN)
• Low-Power Wireless Monitoring
• Environmental Monitoring
• Bridge and Structural Health Monitoring (SHM)
• Smart Building Controls
• Portable and Wearable Health Devices
• Entertainment System Remote Controls

The TPS6273x family provides a highly integrated ultra low power buck converter solution that is well suited for meeting the special needs of ultra-low power applications such as energy harvesting. The TPS6273x provides the system with an externally programmable regulated supply to preserve the overall efficiency of the power-management stage compared to a linear step-down converter. This regulator is intended to step-down the voltage from an energy storage element such as a battery or super capacitor to supply the rail to low-voltage electronics. The regulated output has been optimized to provide high efficiency across low-output currents (<10 µA) to high currents (200 mA).

The TPS6273x integrates an optimized hysteretic controller for low-power applications. The internal circuitry uses a time-based sampling system to reduce the average quiescent current.